CVE-2026-89553high

CVE-2026-89553: high-severity vulnerability in Linux

nouveau/gem: reserve the bo in the info ioctl around the vma lookup

Published · Updated

21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 7.8epss 0.1%
exploitation probability
0.1%top 98% of all CVEs
observed exploitation
nono source reports it
In the Linux kernel, the following vulnerability has been resolved: nouveau/gem: reserve the bo in the info ioctl around the vma lookup In the non-uvmm path, there could be a race between the info lookup finding the vma, and the gem close path closing the vma leading to a use-after-free. Spotted with the help of Opus 4.6.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products
Linux · Linux
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References
https://git.kernel.org/stable/c/208867763843aa82efcbe3b771f1b8e6c7aa820ahttps://git.kernel.org/stable/c/5e17160d41d92823f3379c1982e1369680c5ce4dhttps://git.kernel.org/stable/c/e05c28bd6043d0fd0bea9c3fc49300a8871a1a81https://git.kernel.org/stable/c/e60466011ac3a6b8045e6cc3c2cbb30d58039d2ehttps://git.kernel.org/stable/c/ff110e85837d7ecd83f36078107be240ff5ae409